Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun antiparticle
1 sense of antiparticle
Sense 1
antiparticle -- (a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy)
=> elementary particle, fundamental particle -- ((physics) a particle that is less complex than an atom; regarded as constituents of all matter)